Bulletin, Denison University. Vol. XII, Art. I. 



PLATE III. 



i EESTeBEDBBAmAGE 



It-: ■: 



i'OVtiTIES 



OAV/O. 



J?,a^^l^:M£C.'...f,. . 



Ci.Ainc — Drainage Modilii-ation.- 



